Home / 6,342.40-8,752.19-3,509.72

Finding the Fourth Proportional to 6,342.40, 8,752.19 and 3,509.72

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Solution

The fourth proportional to 6,342.40, 8,752.19 and 3,509.72 is: 4,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.40 : 8,752.19 = 3,509.72 : x
  2. Step 2: Convert to fraction form
    6,342.40/8,752.19 = 3,509.72/x
  3. Step 3: Cross multiply
    6,342.40x = 8,752.19 × 3,509.72
  4. Step 4: Simplify right side
    6,342.40x = 30,717,701.30
  5. Step 5: Solve for x
    x = 30,717,701.30/6,342.40
  6. Step 6: Final answer
    x = 4,843.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.